提出将高斯分布的光场从中心分割为两个对称的光场,再将两个光场匹配叠合,从而获得大范围均匀的光场; 利用普通的反射器件,设计了对高斯光场分割叠合的光路,并可提高散射光场的光能利用率,获得更良好的记录效果。实验结果令人满意。

The large range homogeneous field of a large scattering slit can be used to make marking′s large viewing rainbow hologram. Cutting the Gaussian field into two symmetrical light fields and overlapping them in a frosted glass, thereby the large range homogeneous field is obtained. The optical system using the general reflection devices is presented and analysed. The new optical setup can obtain more homogeneous brightness in the large-range field. The satisfactory experimental results have been obtained.